Bearing



U. E. HOVEY.

BEARING.

APPLICAHON men MAY 13. 1921.

Patented Nov. 21, 1922.,

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BEARING.

APPLICATION HLED MAY I3, I921.

Patented Nov. 21,

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Patented Nov. 21, 1922.

IlABdQStil OTIS E. HOVEY, OF NEW YORK, N. Y.

BEARING.

Application filed May 13,

To all whom-it may concern:

Be it known that I, OTIS E. HovEY, a citizen of the United States,residing in the city. county. and State of New York. and whosepost-office address is No. 431 Riverside Drive. New York city, New York.have invented certain new and useful Improvements in Bearings. of whichthe following is a specification.

This invention relates to center bearings and more particularly tocenter bearing housings for bearings of the type shown in Fnited StatesLetters Patent No. 1.276.530. dated August 20, 1918, of which I am ajoint inventor.

Bearings constructed in accordance with this patent contain adjustableconical rollers, which during manufacture. are caret'ully adjusted inaccurate jigs. After the bearing is finally assembled. the rollers areinaccessible. due to the construction of the upper roller box. and whenit becomes necessary to repair or renew any of the rollers the bearingmust be dismantled. which necessitates the use of a jig to reset therollers.

My present invention provides certain improvements applicable to centerbearings of the type shown in the aforesaid patent and applicable alsoto center bearings and similar devices of other designs." the particularadvantages of the present invention being referred to in detailhereinafter.

In the drawings:

Figure '1 is a plan view of a center bearing or turntable center partlyin section, constructed in accordance with my invention.

4 Figure 9 tion.

Figure 3 is an enlarged detail sectional elevation on the line HTIII ofFigure 1.

Figures r and 5 are similar views showing modified forms of sealsbetween the top and bottom roller boxes.

Figure 6 is a fragmentary sectional elevation showing the jointconstruction be tween two ot the cover or top roller box sections.

Figures 7 and 8 are detail sectional elevations showing furthermodifications of my invention.

Referring more particularly to the drawings. the numerals 2 and 3designate the upper and lower roller boxes or housing is a sideelevation partly in sec- 1 921. Serial No. 469,302.

parts having conical tread plates 1 and 4:, respectively, securedthereto. The main body portion of the upper roller box 2 is ofconsiderably less diameter than the lower box 3 and is extended so as tooverlap the lower box by a plurality of cover segments or sections 5.which are provided with upstanding ribs or flanges 6 at each side edgeadapted to abut the flanges 6 of the next adjoining segment or section.and secured together by bolts 8 passed through the flanges 6. Each ofthe segments or sections 5 is also provided with an upstanding flange- 6at its rear edge adapted to abut the main body of the upper roller box*2. and to be secured to the body of the roller box by bolts 7.

The main body of the upper roller box 2 is extended to form anoverhanging lip 9 having a groove 10 in its lower surface. to preventwater and other foreign matter from entering between the flanges 6 ofthe sections 5 and the box body.

Each of the flanges 6 are beveled as at 14 to form a sloping surfaceadapted to lead water away from the joints between the flanges.

It will readily be seen that by removing the cover segments or sections5 by disconnecting them from the upper box body 2 and from each other bytaking out bolts 7 and 8. free. access may be had to the in terior ofthe bearing. thus facilitating the inspection. adjusting, repairing.etc.. of the bearing.

The tread plates 4 and 4 have their bottom and top faces, respectivelybeveled and conical rollers 19 are adapted to ro tate therebetween. Eachof the conical rollers 19 is journaled on a bolt 20 and the bolts 20extend radially in a horizontal plane through suitable openings in anannular inner thrust ring 22. and outer spacing ring 21. The spacingring :21 and thrust ring 2:?- are live" rings. i. e.. they revolve inthe roller box or housing with the rollers 19 around the vertical axisof the hearing. The inner surface of the thrust ring 22 has a groove 23therein. in which the heads 24 of the bolts 20 are located to preventaxial rotation of the. bolts.

The axial openings in the outer spacing ring 21. through which the bolts20 project. are of a diameter greater than that of the bolts, andsecured in each opening are axially adjustable collars or thrust washers25 and 26, the threaded end of the bolts 20 extending through the axialopening in the thrust washers and 26.

Each of the bolts 20 has a nut 29 threaded thereon which bears againstthe outer end of the thrust washer 25 so as to resist the end thrust ofthe conical roller 19. By adjusting the nuts 29 the rollers 19 areadjusted lengtlnvise.

In assembling the center bearing having a housing constructed inaccordance with this invention. the rollers 19 with the annular innerring 22. spacing ring 21, bolts or pins 24 thrust washers 25 and 26, andadjusting nuts 29 are loosely assembled within the lower roller box orhousing 3 and positioned on the conical tread plate 4'. Three or more ofthe rollers 19 are then carefully adjusted to their proper position. andthe upper roller box or housing 4 is then placed over the assembledrollers so that its tread plate 4 will engage upon the adjusted rollers19. The remaining rollers are then adjusted by tightening the nuts 29.access being gained to the housing through the space adapted to beclosed by the cover segments or sections The rollers 19 are adjusteduntil they engage the upper and lower tread plates -l and 4', thus thetread plates serve as a jig. The cover segments 5 are then secured inplace completing the assembly.

If. after the bearing is assembled. it is desired to adjust the rollers19 or inspect and clean the mechanism, access is readily had to theinterior of the hearing by removing one or more of the cover segments orsections If necessary or advisable. the top half of the housing may beremoved and new parts substituted for worn parts. The housing is thenagain placed in position and the rollers adjusted against the treadplates without the use of a jig.

In Figures 1 to 3 I have shown the cover segments 5 as provided with anouter vertical flange 30 and an inwardly and downwardly projecting innerflange 31 forming an interlock with the vertical or upstanding side wall32 of the lower roller box or housing 3. The inner flange 31 extendsdownwardly along the wall 32 an appreciable distance and is normallybelow the oil level within the housing.

In Figure 4 I have shown a modified form of interlock. The upstandinside wall 32 of the lower roller box is i hrmed thicker adjacent itsupper edge and has its top face grooved as at 33. The cover sections 5each have a downwardly projecting flange 34 adapted to engage in thegroove 33 and an overhanging portion 35 extending beyond the upstandingwall 32 to prevent foreign matter entering the groove 33. The

groove 33 is adapted to be filled with oil to seal the joint between thesections and the lower housing.

In Figure 5 a further modified form of interlock 18 illustrated. In thisconstruction the side wall 3'22 is provided with an outwardly extendingflange 36 and the cover sections 5 are provided with a downwardlyprojecting flange 37 extending below the bottom face of the flange 36and ,turned inwardly forming a locking shoulder 38 adapted to be engagedunder the flange 36. No oil seal is provided in this construction ofinterlock. However. the novel form of interlock prevents water and otherforeign matter finding its way between the wall 32 and the segments InFigure 7 I. have shown the upper and lower roller boxes 2 and 3 ofsubstantially equal diameter and the side wall 32 of the lower box ofless height than that shown in the other figures so as to provide foraccess from the side of the bearing to adjust the nut 29 on bolt 20 orfor other purposes as set forth above. The space between the upper andlower roller boxes is closed by a plurality of cover or side wallsegments 5, which are substantially the same construction as thesegments 5 described heretofore except that the flange 6 is omitted andthe bolts 7 pass through the body of the segment. Therefore thedescription of the construction of Figures 1 to 3 will suffice for thedetails of this modification and the same reference numerals will beapplied.

In Figure 3 I have shown a. construction similar to that of Figure 7 inwhich the upper and lower roller boxes 2 and 3 are of substantiallyequal diameter. However. in this construction the cover segments -10 areformed from flat plates which have their lower edges bent inwardly atright angles to form a locking flange -11 adapted to engage under orinterlock with an outwardly extending flange 42 joined on the upper edgeof the side wall 32 of the lower box.

The segments 40 are secured together by plates 43 which are securedacross the joints between the plates by bolt-s 4H. Bolts 45 are passedthrough the plates 43 and segments 40 and into the top roller box 2 tosecure the segments in place.

IVhile I have illustrated and described my improvements as pertainingprimarily to housings for center bearings. it will be expresslyunderstood that it is not limited to such use since it may be applied tohearing housings generally. and especially to housings for expansionroller bearings.

Various other designs and combinations embodying my invention may bemade with out departing from my invention as defined in the appendedclaims.

I claim 1. A hearing housing composed of upper and lower parts, saidupper part being of appreciably less diameter than said lower part, anda plurality of segmental cover plates secured to said upper housing partand extending over said lower part.

2. A hearing housing composed of upper and lower parts, said upper partbeing of appreciably less diameter than said lower part, and a pluralityof segmental cover plates adapted to close the space formed by thevariance in dimensions of said housing parts, said plates beingdetachably secured to said upper housing part and to each other.

3. A bearing housing composed of upper and lower parts, said upper partbeing of appreciably less diameter than said lower part. a plurality ofsegmental cover plates adapted to close the space formed by the "ariancein dimensions of said housing parts, said plates having their lower endsflanged to interlock with said lower housing part, and. means fordetachably securing said plates to said upper housing part and to eachother.

4. A center bearing comprising an upper roller box. a lower roller box.said upper box being of less diameter than said lower box. rollerbearings mounted between and engaging with said boxes. aplurality ofsegmental cover plates extending over, and adapted to close the spaceformed by the variance in dimension of said upper and lower boxes, saidplates having their lower ends flanged to interlock with said lower box,and means for detachably securing said plates to said upper roller boxand to each other.

5. A hearing housing composed of upper and lower roller boxes spacedapart to form an open space through which access may be had to therollers within the boxes and a plurality of segmental cover platesdetachablv secured to said housing and adapted to close said space.

6. A bearing housing composed of upper and lower roller boxes spacedapart to form an open space through which access may be had to therollers within the boxes and a plurality of segmental cover platesadapted to close said space. said plates being detachably secured tosaid housing and to each other.

7. A bearing housing composed of upper and lower roller boxes spacedapart to form an open spacethrough which access may be had to therollers within the boxes and a plurality of segmental cover platesadapted to close said space. said plates having their lower ends flangedto interlock with said lower roller box. and means for detachablysecuring said plates to said upper roller box and to each other.

In testimony whereof, I have hereunto signed my name.

OTIS E. HOVEY.

